<template>
  <view>
    <!-- 使用自定义的搜索组件 -->
    <view class="search-box">
      <my-search @click="gotoSearch"></my-search>
    </view>
    <!--轮播图的区域-->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
     <swiper-item v-for="(item, i) in swiperList" :key="i">
         <navigator class="swiper-item" :url="'/subpkg/good_detail/good_detail?goods_id=' + item.goods_id">
           <!-- 动态绑定图片的 src 属性 -->
           <image :src="item.image_src"></image>
         </navigator>
     </swiper-item>
    </swiper>
   <!-- 分类导航区域 -->
   <view class="nav-list">
     <view class="nav-item" v-for="(item, i) in navList" :key="i" @click="navClickHandler(item)">
       <image :src="item.image_src" class="nav-img"></image>
     </view>
   </view>
   <!-- 楼层区域 -->
   <view class="floor-list">
     <!-- 楼层 item 项 -->
     <view class="floor-item" v-for="(item, i) in floorList" :key="i">
       <!-- 楼层标题 -->
       <image :src="item.floor_title.image_src" class="floor-title"></image>
       <!-- 楼层图片区域 -->
       <view class="floor-img-box">
         <!-- 左侧大图片的盒子 -->
         <view class="left-img-box">
           <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
         </view>
         <!-- 右侧 4 个小图片的盒子 -->
         <view class="right-img-box">
           <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
                 <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
               </navigator>
         </view>
       </view>
     </view>
   </view>
  </view>
</template>

<script>
  export default { 
    data() {
      return {
        swiperList:[],
        navList:[],
        floorList:[]
      };
    },
    onLoad(){   
      //调用方法获取轮播图数据
      this.getSwiperList()
      this.getNavList()
      this.getFloorList()
    },
    methods:{
      async getSwiperList(){
       const {data:res} = await  uni.$http.get('api/public/v1/home/swiperdata')
       
       //请求失败
       if(res.meta.status !== 200) return uni.$showMsg()
       this.swiperList = res.message
       },
       async getNavList(){
        const {data:res} = await uni.$http.get('api/public/v1/home/catitems')
        //请求失败
        if(res.meta.status !== 200) return uni.$showMsg()
        this.navList = res.message
       },
       async getFloorList(){
         const {data: res} = await uni.$http.get('api/public/v1/home/floordata')
         if(res.meta.status !== 200) return uni.$showMsg()
         // 通过双层 forEach 循环，处理 URL 地址
          res.message.forEach(floor => {
            floor.product_list.forEach(prod => {
              prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
            })
          })
         this.floorList = res.message
       },
       gotoSearch() {
         uni.navigateTo({
           url: '/subpkg/search/search'
         })
       },
       
       navClickHandler(item){
         if(item.name === '分类'){
           uni.switchTab({
             url:'/pages/cate/cate'
           })
         }
       }
    }
  }
</script>

<style lang="scss">
swiper {
  height: 330rpx;
  
  .swiper-item,
  image{
    width: 100%;
    height: 100%;
  }
}
.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;

  .nav-img {
    width: 128rpx;
    height: 140rpx;
  }
}
.floor-title {
  height: 60rpx;
  width: 100%;
  display: flex;
}
.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}
.search-box {
  // 设置定位效果为“吸顶”
  position: sticky;
  // 吸顶的“位置”
  top: 0;
  // 提高层级，防止被轮播图覆盖
  z-index: 999;
}
</style>
